EP2761102B1 - Godet pour criblage et broyage de matériau inerte - Google Patents

Godet pour criblage et broyage de matériau inerte Download PDF

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Publication number
EP2761102B1
EP2761102B1 EP12813450.9A EP12813450A EP2761102B1 EP 2761102 B1 EP2761102 B1 EP 2761102B1 EP 12813450 A EP12813450 A EP 12813450A EP 2761102 B1 EP2761102 B1 EP 2761102B1
Authority
EP
European Patent Office
Prior art keywords
bucket
screening
rotating member
discs
crushing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP12813450.9A
Other languages
German (de)
English (en)
Other versions
EP2761102A2 (fr
Inventor
Diego Azzolin
Guido Azzolin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Meccanica Breganzese SpA
Original Assignee
Meccanica Breganzese SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Meccanica Breganzese SpA filed Critical Meccanica Breganzese SpA
Publication of EP2761102A2 publication Critical patent/EP2761102A2/fr
Application granted granted Critical
Publication of EP2761102B1 publication Critical patent/EP2761102B1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/407—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with ejecting or other unloading device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C1/00—Crushing or disintegrating by reciprocating members
    • B02C1/02—Jaw crushers or pulverisers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/12—Apparatus having only parallel elements
    • B07B1/14—Roller screens
    • B07B1/15—Roller screens using corrugated, grooved or ribbed rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/12—Apparatus having only parallel elements
    • B07B1/16—Apparatus having only parallel elements the elements being movable and in other than roller form
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/965—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of metal-cutting or concrete-crushing implements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/06—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C1/00—Crushing or disintegrating by reciprocating members
    • B02C1/02—Jaw crushers or pulverisers
    • B02C1/04—Jaw crushers or pulverisers with single-acting jaws

Definitions

  • the present invention relates to a bucket for screening and crushing inert material of the type comprising the characteristics mentioned in the preamble of the main claim.
  • buckets are known, which can be applied to the end of the arm of an operating machine, and which comprise an outer casing, configured to collect inert material, such as rubble, material resulting from the demolition of buildings, inside which there are fitted means for crushing the collected material.
  • the pieces of material collected in this way will exhibit heterogeneous dimensions, with debris of large dimensions, which must undergo crushing, combined with rubble, sand and other objects of small dimensions which, on the other hand, can be used directly as reclaimed material.
  • the presence of sand is particularly damaging for the crushing means, both for its abrasive effect on their surfaces, and because the sand can penetrate into their mechanical components limiting their life.
  • screening baskets are used, which can be applied to the arm of the operating machine in a manner similar to the abovementioned buckets, such as for example as described in patent application EP 1 177 839 .
  • the screening means are implemented by a perforated plate which forms the base of the inlet opening for the material to be crushed and onto which the material is laid down after having been collected.
  • the plate is associated with a vibrating system for placing it in vibration and letting the material of small dimensions drop.
  • the bucket is raised, letting the material fall into the crushing area in a manner that is conceptually analogous to the other known buckets.
  • This screening system does not provide for obtaining a screening speed comparable with dedicated screening devices and, furthermore, requires a certain coordination between the collecting, screening and crushing phases, since an insufficient waiting time on the perforated plate does not produce an effective screening.
  • patent application EP 2 278 078 describes a bucket provided with a series of rollers for screening or crushing material.
  • the rollers support a series of star-shaped discs, or alternatively circular shaped discs, which are provided with a plurality of inserts along their edges, which when they rotate act on the material.
  • the technical problem underlying the present invention is that of providing a bucket for screening and crushing inert material which enables the abovementioned drawbacks with reference to the prior art to be addressed. This problem is solved by the bucket according to claim 1.
  • the present invention exhibits some significant advantages.
  • the main advantage consists of the fact that the bucket according to the present invention is capable of performing a screening before crushing the material in a fast and effective manner, hence increasing the productivity of the system with respect to the known systems.
  • it is capable of working even particularly hard materials without a risk of blockages of the screening system and resulting interruptions in the work cycle.
  • the screening device 2 is formed by a pair of rotating members, rotatable in a concordant direction, and supported on the same casing 1, in a position adjacent to an inlet aperture 11 of the casing which, in the present embodiment, coincides with the inlet section 10.
  • Each rotating member 20 is in the shape of a shaft and supports a plurality of discs 21, which also have their axis parallel to the axis of rotation Y.
  • the rotating members are spaced out from one another and spaced out from respective edges of the base of the channel 101, these edges being adjacent to the rotating members, so as to define sufficient spaces for the passage of material which does not need to be crushed.
  • each disc 21 is provided with at least one pair of extensions 21A which are developed in a radial direction with diametrically opposite directions, as can be seen clearly in Figure 1A .
  • the rotating members 20 and, consequently, the extensions 21A do not perform a complete rotation, but are restricted to oscillate about the axis Y by an angle of rotation ⁇ of extent less than or equal to the angle between two consecutive extensions.
  • This movement can be achieved by connecting a driving pulley 23 to a driven pulley 22, integral with the rotating member 20, by means of a connecting rod 24 hinged to both pulleys on opposite ends, thus defining an articulated quadrilateral thrust mechanism.
  • one complete rotation of the driving pulley 23 will correspond to only a partial rotation of the pulley 22 and of the rotating member 20 integral with it.
  • the distance b1 between the hinge point on the driving pulley 23 and the centre of rotation of the latter is less than the distance b2 between the hinge point on the driven pulley 22 and the axis Y.
  • the rotation motion is furthermore transmitted also to the pulley 22' using a further connecting rod 24' or other equivalent system for transmitting the motion.
  • a further connecting rod 24' advantageously provides for transmitting a partial rotation mode to the pulley 22' similar to that of the driven pulley 22.
  • the material will be subject to an up-and-down movement, pushed by the extensions 21A and shuffled so as to achieve their screening.
  • the screening device provides, by virtue of the motion of the extensions 21A, for conferring an up-and-down motion on the material to be crushed, therefore obtaining an effective screening of it before it reaches the crushing unit.
  • This reversal of the rotation may take place either manually or automatically.
  • pressure sensors may be provided in the operating fluid supply circuit for the movement of the member 20 and the reversal of the rotation may take place if a predetermined pressure value is exceeded, indicating that the rotating member 20 is blocked.
  • the bucket can advantageously use the same circuit as that of the operating machine which is normally used to also operate the crushing unit 3.
  • means for selectively sending the oil capacity to the rotating member 20 or to the crushing unit 3 can be provided.
  • the screening device 2 or the crushing unit 3 possibly providing a gradual shifting of the capacity between the device 2 and the unit 3.
  • scenarios may be provided in which the screening device 2 continues, though with less intensity, the screening and pulverization action even while the crushing unit is operating.
  • means can also be provided for detecting the position 7 of the bucket, in particular for detecting its inclination, which means provide for identifying the position of the bucket and consequently operating the screening device 2 or the crushing unit, or operating both of them at reduced load.
  • Figures 5, 5A and 6, 6A represent a variant embodiment not being part of the claimed invention, which differs from the previous embodiment in that it exhibits rotating members 20 rotating in opposite directions. In other words, when a member 20 rotates clockwise, the other rotates anticlockwise, and vice versa.
  • This embodiment differs from the previous one in that it uses a connecting rod 24" hinged on the pinion 22' in different angular positions in comparison to the connecting rod 24'.
  • the motion scheme which is thus used is that commonly defined as an articulated anti-parallelogram.
  • the discs 21 of each rotating member 20 can be offset with respect to the discs 21 of an adjacent rotating member 20, therefore providing an interpenetration of the trajectories of movement of the teeth 21A.
  • each rotating member 20 comprises a plurality of discs 21' which are disposed eccentric with respect to the rotation axis Y of the rotating members 20 and offset with each other, i.e. the discs 21' on a rotating member exhibit geometric centres that are different from one another.
  • the discs 21' of each rotating member 20 exhibit the same eccentricity e of the corresponding discs 21' on the rotating member adjacent to it.
  • offset discs 21' along a respective rotating member 20 provides for imparting an up-and-down movement on the material being worked, thus optimizing the screening action, even in this case in a conceptually similar manner to the previous embodiments.
  • the bucket 100 is provided with a plurality of fins 103, which are developed between two adjacent discs 21', so as to limit the space useful for the passage of material.
  • These fins 103 exhibit a substantially triangular shape and have a flat development substantially parallel to that of the discs 21'.
  • the danger of blockage of the rotating members 20 is avoided even in the case of a complete rotation of the discs 21' since, because the extensions 21A are absent, the discs will not be subjected to stresses deriving from materials blocked in the screening device 2.
  • the members 20 can be rotated by means of a belt or chain transmission, which receives its motion from the driving pulley 23.
  • the distance d between centres between the rotating members 20, understood as being the distance between the respective rotation axes can be adjustable, so as to modify the size of the spaces defined for the passage of the material and, consequently, the characteristics of the screening.
  • a fourth embodiment, not being part of the claimed invention, is represented in Figures 9 to 10A .
  • the screening device comprises a rotating member 200 formed at a crankshaft rotatable at a rotation axis Y' substantially perpendicular to the feed direction A for feeding the material towards the crushing unit 3.
  • crankshaft On the crankshaft, there are rotatably supported a plurality of pairs of connecting rods 201, 202 which, by means of the rotary movement about the axis Y', are subjected to an articulated quadrilateral movement.
  • the connecting rod 202 supported rotatably about an axis Y" parallel to the axis Y', oscillates about its rotation axis, penetrating with alternating motion into the channel 101.
  • This alternating movement hits the material to be crushed present in the channel 101, moving it and screening it.
  • the screening device also comprises a series of fixed ribs 203, parallel to the connecting rods 201 and 202 and placed between each pair of connecting rods, which provide for defining spaces for the passage of the material of a size below the predetermined dimension and which does not require crushing.
  • the invention therefore solves the stated problem, attaining a plurality of advantages at the same time, including a notable increase in the life of the crushing unit and of the screening device, in particular of the jaws and of the associated mechanical components, as well as lower maintenance requirements for the bucket.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Disintegrating Or Milling (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Shovels (AREA)

Claims (5)

  1. Godet (100) pour cribler et broyer un matériau inerte, comprenant une enveloppe externe (1), une section d'admission (10) pour l'introduction du matériau à broyer dans l'enveloppe (1), une unité de broyage (3) du type à mâchoires agencée dans l'enveloppe (1) pour broyer le matériau et comprenant au moins une mâchoire mobile (31) avec un mouvement alternatif dans une direction de broyage (C) perpendiculaire à une direction d'alimentation (A) du matériau et un dispositif de criblage (2) pour cribler le matériau à broyer, disposé dans une position intermédiaire entre l'ouverture d'admission (10) et l'unité de broyage (3) et comprenant au moins deux éléments rotatifs (20) parallèles l'un à l'autre dans lequel
    la rotation desdits éléments (20) est appropriée pour mettre en oeuvre le criblage de parties de matériau à broyer qui sont d'une taille inférieure à une dimension prédéterminée, dans lequel chacun desdits éléments rotatifs (20) supporte une pluralité de disques (21') avec un axe parallèle à l'axe de rotation (Y) de leur élément rotatif respectif, ledit axe étant perpendiculaire à la direction d'alimentation (A), caractérisé en ce que les disques (21') sont disposés de manière excentrique par rapport à l'axe de rotation (Y) de leur élément rotatif respectif,
    les disques (21') de chaque élément rotatif (20) étant décalés les uns par rapport aux autres relativement à l'axe de rotation (Y) de leur élément rotatif respectif et présentant la même excentricité (e) des disques correspondants (21') d'un élément rotatif (20) adjacent à celui-ci.
  2. Godet (100) selon la revendication 1, dans lequel ledit élément rotatif (20) est supporté à l'intérieur de l'enveloppe (1) et dans lequel des bords (102) sont définis sur l'enveloppe (1) dans une zone adjacente à l'élément rotatif, le godet (100) comprenant en outre une pluralité d'ailettes (103) qui sont développées entre deux disques adjacents (21') de l'élément rotatif (20).
  3. Godet (100) selon la revendication 2, dans lequel les ailettes (103) présentent une forme sensiblement triangulaire et ont un développement plat sensiblement parallèle à celui des disques (21').
  4. Godet (100) selon l'une quelconque des revendications précédentes, dans lequel ladite pluralité d'éléments rotatifs (20) sont parallèles les uns aux autres et ont une distance ajustable (d) entre les centres.
  5. Godet (100) selon l'une quelconque des revendications précédentes, comprenant des moyens de fixation (5) pour la fixation à une extrémité libre d'un bras d'une machine fonctionnelle.
EP12813450.9A 2011-09-30 2012-09-28 Godet pour criblage et broyage de matériau inerte Active EP2761102B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000309A ITPD20110309A1 (it) 2011-09-30 2011-09-30 Benna per la vagliatura e la frantumazione di materiale inerte
PCT/IB2012/055189 WO2013046167A2 (fr) 2011-09-30 2012-09-28 Godet pour criblage et broyage de matériau inerte

Publications (2)

Publication Number Publication Date
EP2761102A2 EP2761102A2 (fr) 2014-08-06
EP2761102B1 true EP2761102B1 (fr) 2019-01-16

Family

ID=45094111

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12813450.9A Active EP2761102B1 (fr) 2011-09-30 2012-09-28 Godet pour criblage et broyage de matériau inerte

Country Status (17)

Country Link
US (1) US9945094B2 (fr)
EP (1) EP2761102B1 (fr)
JP (1) JP6138803B2 (fr)
CN (1) CN104024532B (fr)
AU (1) AU2012317191B2 (fr)
BR (1) BR112014007526B1 (fr)
CA (1) CA2849890C (fr)
CL (1) CL2014000744A1 (fr)
ES (1) ES2719303T3 (fr)
HK (1) HK1198663A1 (fr)
IT (1) ITPD20110309A1 (fr)
MX (1) MX354912B (fr)
PE (1) PE20141610A1 (fr)
RU (1) RU2597222C2 (fr)
TR (1) TR201902523T4 (fr)
WO (1) WO2013046167A2 (fr)
ZA (1) ZA201401845B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20110308A1 (it) * 2011-09-30 2013-03-31 Meccanica Breganzese S P A Benna per la frantumazione di materiale inerte
ITPD20110310A1 (it) * 2011-09-30 2013-03-31 Meccanica Breganzese S P A Benna per la vagliatura e la frantumazione di materiale inerte con valvola equilibratrice
IT201700078145A1 (it) * 2017-07-11 2019-01-11 Mecc Breganzese S P A In Breve Mb S P A Benna vagliatrice
IT202100029096A1 (it) * 2021-11-17 2023-05-17 Mecc Breganzese S P A In Breve Mb S P A Benna frantumatrice

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Also Published As

Publication number Publication date
US9945094B2 (en) 2018-04-17
BR112014007526B1 (pt) 2021-01-26
ITPD20110309A1 (it) 2013-03-31
TR201902523T4 (tr) 2019-03-21
MX354912B (es) 2018-03-26
WO2013046167A2 (fr) 2013-04-04
RU2597222C2 (ru) 2016-09-10
EP2761102A2 (fr) 2014-08-06
BR112014007526A2 (pt) 2017-06-13
ZA201401845B (en) 2015-06-24
AU2012317191A1 (en) 2014-04-03
CN104024532B (zh) 2017-05-17
US20140326816A1 (en) 2014-11-06
RU2014117195A (ru) 2015-11-10
JP6138803B2 (ja) 2017-05-31
ES2719303T3 (es) 2019-07-09
AU2012317191B2 (en) 2017-07-20
PE20141610A1 (es) 2014-11-16
CN104024532A (zh) 2014-09-03
CL2014000744A1 (es) 2014-07-04
HK1198663A1 (en) 2015-05-22
CA2849890C (fr) 2019-10-29
JP2014529023A (ja) 2014-10-30
CA2849890A1 (fr) 2013-04-04
MX2014003321A (es) 2014-08-22
WO2013046167A3 (fr) 2013-07-11

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